def __remove_liberties(self, move):
"""
Updates the liberties of all opponent groups when a stone is added,
removing the corresponding libertie
"""
for group in self.get_groups_by_color(get_opponent_color(move.color)):
group.remove_libertie(move.vertex)
def __set_winner_if_possible(self, move):
color = move.color
if Vertex.PASS() == move.vertex:
if ((color == WHITE_COLOR and self.last_white_move_is_pass) or
(color == BLACK_COLOR and self.last_black_move_is_pass)):
self.winner = get_opponent_color(color)
self.game_finished = True
elif not self.__has_liberties(get_opponent_color(color)):
# capture opponent
self.winner = color
self.game_finished = True
elif not self.__has_liberties(color):
# suicide
self.winner = get_opponent_color(color)
self.game_finished = True
def test_get_opponent_color(self):
self.assertEqual(get_opponent_color(WHITE_COLOR), BLACK_COLOR)
self.assertEqual(get_opponent_color(BLACK_COLOR), WHITE_COLOR)
